14k Yellow Gold 1.8 millimeters Round Box Chain Necklace Overstock 14K Yellow Gold Box Chain Gem Solid Box Chain 14K Yellow Gold 16" Length 1mm Jared Jewelry 14k Yellow Gold 18 Box Chain Necklace 1mm 197 Grams Poshmark Round Box Chain in 14k Yellow Gold For Sale at 1stDibs 14k Solid Yellow Gold Round Box Chain, Link Chain, 1.6mm, 2.5mm, 3.6mm. This round box chain comes in 14k yellow gold and has a width of 1. 8 millimeters. Product Details: Chain Information : Metal : 14K Yellow Gold Chain Type : Box Clasp : Lobster Clasp Width : 1. 80 mm Approximate Weight: Size Weight 16'' 3. 1 grams 18'' 3. 5 grams 20'' 3. 9 grams 24'' 4. 7 grams